/*
 * Copyright 2002-2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.chimi.s4s.storage;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * 파일 데이터에 접근하기 위한 인터페이스
 * 
 * @author 최범균
 */
public interface FileData {

	/**
	 * FileId를 리턴한다.
	 * 
	 * @return
	 */
	FileId getFileId();

	/**
	 * InputStream을 구한다. 호출 코드는 사용이 끝난 후, InputStream을 종료해 주어야 한다.
	 * 
	 * @return
	 * @throws IOException
	 */
	InputStream getInputStream() throws IOException;

	/**
	 * out 출력 스트림에 파일 데이터를 쓴다.
	 * 
	 * @param out
	 * @throws IOException
	 */
	void write(OutputStream out) throws IOException;
}
